Submerged heater.



A. NELSON.

SUBMERGED HEATER.

APPLICATION FILED MAR. 2|, 1917.

1,240,477. rammed sept. 18,1917.

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A Ar. NEiisoN, or E1rLEY,TENNEssEE.`

SUEMEEGED HEATER.

Speeiicaton of Letters Patent. l

Application inea Meren 21, 1917. serial No. 156,311.

To all iuhom t may concern:

Bc it linown that I, AL NELSON, a citizen of the United4 States,residing at Ripley, in the county of Lauderdale and State of Tennessee,have invented certain new and useful Improvements in Submerged Heaters,of which the following is a specification.

My invention relates to new and vuseful improvements in heaters and moreparticu` lai-ly heaters of the submerged type, the pri- Y mary object ofmy invention being the provision of a submerged heater capable ofburning liquid fuel and adapted to bel dis'- posed within the body ofthe water or other liquid to be heated.

A still further object which I' have in view is the provision of aheater including a main body or casing and a burner supported within thecasing, thelb'urner 'including a fuel container into which air may beforced, under pressure, to properly feed fuel to the burner itself.

` Another object which I have in view is the provision of suitable meansfor supporting the burner and fuel container Within the body of theheater so that they may be removed at any time. With these and otherobjects in view, my invention will be more fully described, illustratedin the accompanying drawing, and then specifically pointed out in theclaims which are attached to and form a part of this application.

In the drawing: l

Figure 1 is a central vertical sectional View taken through my improvedheater, showing it in use. Y

Fig. 2 is a transverse sec ional view taken on the line 2-2 of Fig. 1,illustrating the heater structure;

Fig. 3 is a corresponding view taken on the line 3-3 of Fig. 1.Corresponding and like parts are referred to in the followingdescription and indicated in yall the views of the drawing by the sainereference characters.

My improved heater includes a substantially cylindrical body or casing10 preferably formed of sheet metal of suitable weightclosed at itslower end and open at its upper end. This casing is to be positioned inthe water or other liquid to be heated so that its open end is above theliq uid level and if the liquid is sufiiciently sha1-l low the bottom ofthe casing may rest upon the bottom of the liquid container.Preferably,`however, the casing, adjacent its upper end, is providedexteriorly with a supporting hoolr 11 by means of which it may besupported or hung within the container of the liquid to be heated.

l Patented sept. is, 1917.

An open supporting ring 12 has diametrically extending arms 13yterminating in ears 14e which engage against the inner face of thecasing 10 to which they are secured by rivets or other suitablefastening devices 15 so that the supporting ring is held in parallelspaced relation to the bottom ofthe container, asl clearly shown inFig.` 1. `This supporting ring in turn receives the fuel container 16which', as shown in Fig. 1, is

the ring 12 when the parts are assembled.

vpreferably cylindrical in shape and of less diameter and heightthanfthe body 10. The

The upper end of the fuel reservoir 16 is 1 externally threaded' toreceive the threaded flange of a. cover 19 and centering braces 2Ocarried by the casing 10 engage the upper portion of the vreceptacle tosupport it,y in

proper position. These centering braces have -ears 21 corresponding tothe ears 14e by which they are secured to the casing'lO and at theirinner ends have arcuate arms 22 engaging against the receptacle 16. l

A cup shapedv vaporizer upper end closed by a cap 24e having a spout 25which threads into the discharge spout or neck 18 vof the receptacle 16and the upper end of which forms a valve seat for a needle valve 26carried by a valve'y stein 27 which extends axially of the receptacle,being adjustablyv threaded ina sleeve 28 formed upon `the coverg19. Thisvalve stem, at its outer end, is'provided with a handle 29 in order thatit may be conveniently turned tocause opening of the valve 26 to a moreor less eX- 23 has its open 'I tent'. A burner tube 30 leads from thelower end of the vaporizer cup 23 and extends laterally or radially ofthe casing 10 to a point adjacent the peripheral wall thereof so thatflame from fuel passing through this burnerA tube will be directedagainst the Wall of the either'by resting the casing hand pump 33arranged to discharge intothe receptacle 27, as shown at 34, and havingan operating plunger 35 projectingaboveVr the upper end of the fuelreceptacle.

In operation, the lfuel .receptacle 16 is partially filled with asuitable-liquid fuel,

such as gasolene, and the valve 26 is opened to permit the `desired feedof such fuel-to the absorbent material contained in the vajporiz'inglcup 23.7I`his feed of fuel is insured byfmanipulating the pump33 to create any desired air pressure within the fuel container. By thismeansfsuitablel feed of fuel through the tube 30 is insured and the fuelescaping from this tube may he ignited in the usual manner. The Afuelreceptacle with its burner -is then lowered into the casing .710,Y thevaporizing cup passing through the supporting ring and the burner tubethrough ,the opening in such ringy until theparts reach the positionshown in the drawing. The casing and inclosed -burner are thenpositioned in the liquid vto be heated, directly upon the bottom of theliquidholding'vesselror by han-ging it within such vessel by means ofthe hookll.- It will be obvious, therefore, that I have provided aforced feed for the fuel If desired, however, .the cover 19 mayfbegformed withv a lling opening having a closure capV 36 and thiscapinayy be loosened to permit passage of air so that the device may beemployed `with gravity feed, if wished, the pump,fof course, not beingoperated under such erably also,if the fuel is fed by majorrportion ofthe packing in the cup 23 will be removed to insure suitable flow offuel.n

I alsofprovide the casingl0, near its lower end,- twith anl indentation37 which overhangs the end of the burner so that the flame therefrom isdirected upwardly against the inwardly projecting-surface as this causesa more rapid heating of the water After the `fuel container and burnerhave been lowered into the casing they-may be readilyturnedto bring thedentation. f

burner beneath this intion, it will of Ycourse be understood that I donot wishto Alimit myself to such detailsf but reserve theright ltolmakeany "changes, v

within the' scope of the appendedv claims, without in-thev slightestdegreey departing from' thespirit of my inventioi'n/w` Having thusdescribed' the invention,

circumstances. Prefgravity thev 'the supporting ring,

seating at .one 1 end in they end and open at its upper end, an opensupporting ring disposed substantially centrally Vvand-adjacent thelower end of thev casing,

arms extendingl from the ring and fixed to the casing to support thering, centering armsextending inwardly from the Casing near its upperend, a fuel receptacle having its upper portion centered between thearms and its lower portion engaging in the supporting- Vring, avaporizing cup passable through kthe supporting ring and communieatingwith the lower portion of the receptacle, a fibrous packingin the cup,vand a burner tube leading from the cup in a lateral direction yto apoint adj atentV the wall` of the casing. y

2. In ak heater, a casing closed at its lower .y

end and open at its upper end, an open sup porting ring disposedsubstantially vcentrally and adjacent the lower end of the casing, armsextending from the ringand fixedto -thefcasing to supporttheringycentering i .the teasing near its upper end, a fuel receptaclelhaving,

arms extending inwardlyI from its upper portion centered between thearms and its lower- 90 'portion engaging .in the .sup-v porting ring, avaporizing cup lpassable through the supporting ring andvcommunieatingwith the lowerportion of the `:receptacle, a fibrous packing in the cup,a burner tube leading from-the cupin alateral direc-y tionv to a pointadjacent the wall of the cas-I- ing, ,andl a valve controlling flow offuel from the receptacle to the cup. A

3. In a heater, a casingclosed at its rlower end and open at its upperend,l an opensupportingring disposed substantially cenl f trallyandadjacent the lower end'zof thefcasing, fixed to the casinggto'support the ring, cenarms extending fromA-the ring and l tering armsextending inwardly 'from thecaslng near its'upper end,a fuelreceptacle-ry the-arms and its lower portion engaging' inl a vaporizingcup; pas sable through the supporting ring and communicating withv thelower portion of the 7re ceptacle, a fibrous burner tube leading eraldireotionto a point adjacentl the wall of the casing, fuel from thereceptacle to the cup, fand-a pumpvdisposed to force airinto-therecepqtacle. Although I have illustrated and described myinvention in allitsdetails of'construc- 4L. In a-heater, laicasingclosedat itsllowerhaving its upper'iportion centered-betweenl v packing `in the-cup, afrom thecup in a latv a valve' controlling flow. of

end andz'formed adjacent lsuch end with an i indentation, afuelreceptacle supported.

within the casing, and a burner having.- opL erati-ve connection withthe ifuel receptacle and disposed .immediately below the iinden-vl ftation of the casing.

5. In a-.heaten acasing closed at its lower endfaring supported withinthe casingyarms projectinglinto the casingf, a fuel-receptacle ring and;centeredby the arms, and a burner disposed Within the casing and havingconnection with the fuel receptacle.

6. In a heater, a casing closed at its lower 5 end, an open supportingring held adjacent the lower end of the casing, a fuel receptacle havingits lower portion engaging in the supporting ring, centering means forthe receptacle, and a burner tube having operative connection with thefuel receptacle and projecting laterally to a point adjacent the easing,the burner tube being passable through the opening of the ring whenpositioning the receptacle. Y

In testimony whereof I alix my signature.

AL NELSON. [n 5.]

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of :Pate-nts,

Washington, D. C.

